* {
  margin: 0;
  padding: 0;
}
.box {
  width: 100%;
  header {
    nav {
      ul {
        background: #e3e3e3;
        padding: 5px 0;
        li {
          text-align: center;
          list-style: none;
          display: inline-block;
          width: 15%;
          background: white;
          border-radius: 15px;
          margin-left: 15px;
        }
      }
    }
  }
  main {
    div {
      ul {
        padding: 5px 0;
        background: white;
        margin: 0;
        li {
          display: inline-block;
          list-style: none;
          width: 15%;
          margin-left: 10%;
          border-radius: 15px;
          text-align: center;
          background: #e3e3e3;
          &:hover {
            color: red;
          }
        }
      }
    }
  }
}
.son1 {
  .div {
    div {
      width: 90%;
      margin: auto;
      // background: #e3e3e3;
      .top {
        padding: 5px 0;
        div {
          display: inline-block;
          width: 50%;
          span {
            display: inline-block;
            padding: 5px;
            // background: white;
            margin-left: 10px;
            border-left: 1px solid #e3e3e3;
          }
        }
      }
      .main {
        div {
          width: 100%;
          .left {
            display: inline-block;
            width: 70%;
          }
          .right {
            display: inline-block;
            width: 30%;
            img {
              max-width: 100%;
            }
          }
        }
      }
    }
  }
}
.son2 {
  width: 90%;
  margin: auto;
  div {
      position: relative;
    .left {
      display: inline-block;
      width: 70%;
      .top {
        span {
          display: inline-block;
          padding: 0 8px;
          border-right: #e3e3e3;
        }
      }
      .bottom {
        span {
          display: inline-block;
          padding: 0 8px;
        }
      }
    }
    .right {
      height: 180px;
      display: inline-block;
      width: 30%;
      position: absolute;
      top: 0;
      right: 0;
      .top {
        span {
          display: inline-block;
          padding: 0 8px;
          background: #e3e3e3;
        }
      }
      .main {
        margin-left: 15px;
        margin-top: 50px;
        img {
          max-width: 30%;
        }
      }
    }
  }
}
.son3 {
  div {
    width: 90%;
    margin: auto;
    div {
      margin-bottom: 25px;
      .top {
        div {
          display: inline-block;
          width: 50%;
          span {
            display: inline-block;
            width: 40%;
            border-left: 1px solid #e3e3e3;
          }
        }
      }
      .bottom {
        span {
          display: inline-block;
          margin-left: 5px;
        }
      }
    }
  }
}
